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Related papers: Optimizing the Bent Crystal Parameters for High-Ef…

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The understanding of the crystal collimation and extraction experiments performed in the recent decade at CERN SPS, FNAL Tevatron, IHEP U-70 and RHIC is reviewed from the standpoint of Monte Carlo simulations. The expectations for the LHC -…

Accelerator Physics · Physics 2007-05-23 V. M. Biryukov

The total energy consumption of today's video coding systems is globally significant and emphasizes the need for sustainable video coder applications. To develop such sustainable video coders, the knowledge of the energy consumption of…

Image and Video Processing · Electrical Eng. & Systems 2024-10-03 Geetha Ramasubbu , André Kaup , Christian Herglotz

In computer simulations we find that particles can scatter in bent crystal lattices with effective radiation length down to a few micron or 300-700 times shorter than in the corresponding amorphous materials. We derive a theoretical…

Accelerator Physics · Physics 2007-05-23 V. M. Biryukov

With a Stark decelerator, beams of neutral polar molecules can be accelerated, guided at a constant velocity, or decelerated. The effectiveness of this process is determined by the 6D volume in phase space from which molecules are accepted…

Atomic and Molecular Clusters · Physics 2009-11-13 Ludwig Scharfenberg , Henrik Haak , Gerard Meijer , Sebastiaan Y. T. van de Meerakker

Plasma wake-field acceleration is one of the main technologies being developed for future high-energy colliders. Potentially, it can create a cost-effective path to the highest possible energies for e+e- or {\gamma}-{\gamma} colliders and…

Accelerator Physics · Physics 2018-05-16 Valeri Lebedev , Alexey Burov , Sergei Nagaitsev

We report the results of theoretical and numerical analysis of the crystalline undulators planned to be used in the experiments which are the part of the ongoing PECU project [1]. The goal of such an analysis was to define the parameters…

Accelerator Physics · Physics 2009-11-13 A. V. Korol , A. V. Solov'yov , Walter Greiner , . , .

Particle channeling in a bent crystal lattice has led to an efficient instrument for beam steering at accelerators, demonstrated from MeV to TeV energies. In particular, crystal focusing of high energy protons to micron size has been…

Accelerator Physics · Physics 2007-05-23 V. M. Biryukov

The fast extraction kicker system is one of the most important accelerator components, whose inner structure will be the main source of the impedance in the RCS. It is necessary to understand the kicker impedance before its installation…

Accelerator Physics · Physics 2016-08-03 Liangsheng Huang , Sheng Wang , Yudong Liu , Yong Li , Renhong Liu , Ouzheng Xiao

Context. Synthetic model atmosphere calculations are still the most commonly used tool when determining precise stellar parameters and stellar chemical compositions. Besides three-dimensional models that consistently solve for hydrodynamic…

Solar and Stellar Astrophysics · Physics 2015-05-20 X. S. Wu , S. Alexeeva , L. Mashonkina , L. Wang , G. Zhao , F. Grupp

Several methods for measuring the compressive strength of strong particulate gels are available, including the centrifuge method, whereby the strength as a function of volume-fraction is obtained parametrically from the dependence of…

Soft Condensed Matter · Physics 2014-10-10 Richard Buscall , Daniel R. Lester

Since its commissioning in 1977, the U-120M cyclotron has been equipped with one pair of harmonic coils dedicated to establishing optimal beam quality at low accelerating radii. In 2022, the cyclotron was upgraded and a second pair of…

Accelerator Physics · Physics 2024-01-17 Tomáš Matlocha , Jan Štursa , Radek Běhal , Václav Zach , Milan Čihák

We introduce and give examples of applications of an optimality criterion which can be used for the design and comparison of multiple beam profile emittance and Twiss parameters measurement sections and which is independent from the…

Accelerator Physics · Physics 2013-05-08 V. Balandin , W. Decking , N. Golubeva

Diffractive optical elements with a large diffraction angle require feature sizes down to sub-wavelength dimensions, which require a rigorous electromagnetic computational model for calculation. However, the computational optimization of…

In this contribution accelerator solutions for polarized beams and their impact on physics measurements are discussed. Focus are physics requirements for precision polarimetry near the interaction point and their realization with polarized…

The emergence of multi-petawatt laser facilities is expected to push forward the maximum energy gain that can be achieved in a single stage of a LWFA to tens of GeV, which begs the question - is it likely to impact particle physics by…

Accelerator Physics · Physics 2023-11-27 Shuang Liu , Fei Li , Shiyu Zhou , Jianfei Hua , Warren B. Mori , Chan Joshi , Wei Lu

The quaternion Bingham distribution has been used to model preferred crystallographic orientation, or crystallographic texture, in polycrystalline materials in the materials science and geological communities. A primary difficulty in…

Materials Science · Physics 2018-03-29 Stephen R. Niezgoda , Eric A. Magnuson , Jared Glover

First computer experiment results on proton beam deflection by the crystal miscut surface are presented. The phenomenology of proton channeling and quasichanneling has been applied to describe new features of the beam deflection. The…

Accelerator Physics · Physics 2014-01-22 A. A. Babaev , G. Cavoto , S. B. Dabagov

The energetic efficiencies of rocked ratchets reported in the literature typically lie in the sub-percent range. We discuss the problem of optimization of the energetic efficiency of a ratchet, and show that considerably higher efficiencies…

Statistical Mechanics · Physics 2007-05-23 I. M. Sokolov

Energy efficiency in terahertz range is evaluated experimentally of a spin-injection oscillator based on a ferromagnetic rod-film structure with point contact between the components. Choice of the film material influences substantially the…

Materials Science · Physics 2011-05-31 Yu. V. Gulyaev , S. G. Chigarev , I. V. Malikov , G. M. Mikhailov , P. E. Zilberman , E. M. Epshtein

Elastically bent single-crystal Laue case diffraction crystals provide interesting new opportunities for imaging and spectroscopy applications. The diffraction properties are well understood, however, the ability to easily model the…

Optics · Physics 2020-03-24 Peng Qi , Xianbo Shi , Nazanin Samadi , Dean Chapman